Valve gear for liquid meters on vehicles or the like



Jan. 15,1929; 1,699,440

A. NAGEL VALVE GEAR FOR LIQUID METERS ON VEHICLES OR THE LIKE A. NAGEL VALVE GEAR FOR LIQUID METERS ON VEHICLES OR THE LIKE Filed Dec. 5, 1925 A 2 Sheets-Sheet 2 Ve Tfo r^ www ag asf Nage I '1 5f MM ,L M

Patented Jan. 15, 1929.

siren s Ars;

Parier orties.)

AUGUSTNAGEL, or sr'u'rfreanr, ennivrnnr.

` VALVE GEAR ron LIQUID iun'rnns on vnrrionns en Tren nnte.' Y

Application filed December 5, 1925,l Serial No. 73,533, ,and in Germany January 10, 1925.

This invention relates to a valve gear for a liquid-meter with measuring vessel and lio-at, more particularly for measuring the fuel-consumption in automobile vehicles.

' ln this connection the connecting of the valve rod g ar not directly with the tilting lever controlled by the ioat but with the interposition of a snap acting mechanism bctween them is known.

One constructional form of the invention is illustrated by fway of example in the accon paning drawings. 1

Figures l and 2 show the' valve-contro mechanism in two opposite,lockedpositions. Figure?) is a general view of the measuring apparatus, and Figure l a. side view thereof, partly in section.

In the measuring tank z' of a fuel meter for automobile vehicles there is a rod 7L. The latter is slidably supported in a supporting member /c and in the closure platee'1 of the measuring tank. The rod 7i carries valves Z at its lower end. These valves co-operate with a liquid inlet fm, and aliquid outlet n of themeasuring tank c'. @ver the .rod h there slides a .float 0. The latter carries a rackp, which meshes with a toothed wheel g, which is rigidly connected with a shaft a. .On this toothed wheel are located lpins r and r1, which serve as drivers for a Weight lever o. This weight is freely rockable aboutthe shaft a. lt lie-.sacentral arm b1, vwhich carries a tipping weight b2. rlwo members b3 and b4 projecting towards opposite sides of the aforementioned cent-ral arm b1 carry stops b5 and respectively. In Figure l is shown, eX- tending in the saine direction as the arm 73], a. second arni which is located within the range of rotation of the driver pins r and r1. The arm b1 that carries the tiltingfweight might alternatively have been bent forwards, so as to come within the range of rotation ol" these driver pins. According as the tipping weight tilts to one side or the other, one or the other of the sto-ps and o comes into contactwith a projection c7, on the lower arm of a. lever c. Thelatter rocks about a pivot s. lts upper arm is connected by a pivoted joint Z with an anchor-'shaped member e, having a rodelike attachment which extends in an upward direction and is guided by a bearin g or support g on the supporting frame 7c. A spring y coiled round this rod is com# pressed during the rocking movement of the anchor e and relaxed as soon as the tilting weight Z22 has passed beyond its dead centre.

Lateral arms on the anchor e have bevelled surfaces el, e2 bevelsV 01,02 respectively, located on limbs c3,

c4 of. a member c5 somewhat resembling a' scale beam,whereby these two members are anchored orlocked to one another. The

scale-beam-like member c5 also swingsY about the shaft s. The member o'rihas recesses or notches c lnv these therek engage, attach ments /il on the valve rod 7i, so that during the rocking of the member c5 the valve rod la is'raised or lowered, as a result of which the alternating action of the valvesoccurs.

T he method .of workingof the apparatus is as follows A The liquid passes through the inlet passagemilite the measuring tank t' (see Figure The floato is raised. The rack 20 thereupon sets in rotation the toothed wheel g, whichrotates the shaft ai. The pin r1 bears against the arin o1 of the tilting weight lever l), which is freelv rotatable about the shaft a.

, which slice alternately'fover The W elle b2. tthe end of the arm b1 is Carately afterwards there occurs the relaxation I of the spring, and the bevel el of the anchor e .pushes itself over the bevel c1 of the scalebeamlike member c, which is roel-:able freely f about the shaft e, into the locked posit-ion of the members c, @.(see Figure i). During this rocking movement of the parte, by cngagement of the projections or bridge pieces Llon the rod L in the recesses c in the part c, the rod 71, has been displaced downwards f and the valve bodies Z have closed the inlet passage m and opened the outlet passage n-Q vThe liquid now flowsV out of the measuring tank i into a connected storage reservoir, and during this discharge, by the ldescent of the Heat, the members previously .described are influenced in the opposite direction.

Whatl claim is:

l. Valve reversing mechanism for a liquidv Y meter with measuring vessel and float, comprising a valve rod, a tilting weight, float actuated means adapted to control said tilting weight, a bent lever, means enabling the tilting weight, at the end of its tilting movcclaim l, the

ment in either direction, to rock said bent lever, a 'ff-shaped member pivotally connected with one end of said bent lever so as to be displaced When said bent lever rocks, and a U- sha-ped scale beam adapted to be rocked by the displacement oic the T-sliaped member.

2. Valve reversing mechanism as claimed in claim l, the -Uehaped scale beam 'being formed with notches, and the mechanism turf ther coniprisine bridge pieces on the valve rod y engaging in otclfies.

rever io' gear as claimed in 'lsi VL)ed member beingl formed i h tivo .oblique surfaces, the Meehan fl scalo beam also being formed with two enligne surfaces, :and 'the obliqne i :ii-aces ot Athe T- shaped member being ladapted to co-oierate with the oblique vsurfaces .of the l-shaped scale beain to secure the valve rod gear 'in tion ter reversal.

4l. Valve reversing mech meter With measuring vessel and at, coinpri-sing valve rod, a tilt-ng Wciiift lever, iloat actuated means adapted to cause said tilting weight lever to tilt in ore ldirection as the lloat rises and in the opposite direct;L n as it sinks, the tiltiifig` weight lever being` pted to complete its ii-iovenient in either 3. wValve direction suddenly by the d-rop `of the Weigh-t as soon as fl float actuated ineens have carried it past c deed centre position, a

. U-s'liaped rocking lever, means enabling said U-shaped rocking lever to raise and lower the valve rod when roc'lied, and fa two-armed lever adapted tobe rocked in either direction by the til-ting Weigh-t lever as the movement of said til-tine wei-ht lever is ycom` leted b the e; n

droppin-g of the vveinlit, and to 'impart cor-A responding rocking' 'movements to the U- sliaped rocking lever.

5. Valve reversingl mechanism 'for a liquid x with iiieasu'riirg vessel Vand lloat, coning a 'valve rod, a tilting` Weight lever, float actuated means adapted to cause said tilting weight .lever -to tilt in one direction as .the 'lloat rises and in theV opposite direction as it sinks, t'lie tiltingweight lever being adapted to complete its nim-'ement in either direction suddenly by the dropping of the weight as soon the float actuatedl ineane have carried it past its dend centre position, a two-armed lever adapted to be rocked in either direction oy the tilting` Weight lever as the movement ol said tilting Weight lever is completed by the vdropping of the weight, an anchor-shaped member pivoted to the `free end ot' said tivo armed lever and adapted to be oscillated thereby,a U-shaped rocking lever adapted to be necked by said anc'lior-shaged for a liquid' and means enabling' said `ll.-sliaped rociniig lever to reise and lower the valve rod When rocked.

6.. Valve reversing mechanism for a liquid meter with measuringx vessel and ifioat, com- 'priin-g a valve rod, atiltingl Weight lever,

tioat acte vlc; i, c

lion s ddenly by thedroppoag of the 'ii/*eight ,s soon as theV actuated n ens have can i its dead centre nos' ion, 1a two d to be rock l 4 iig Weight .er as the n. it lever is completed by che dropping` Aot ihieV l glit, an anchor-shaved nieinbe pivotedfto' the fr e end olf' said :armed lever and ardente-dto be oscillated thereby, a notched Misha-peil roclrine lever adapted to be rocked'by said anchor-shaped inem-lier, enel projections ,en the valve rod silent-'ed to en yage with the iro-.ches in 2U fsliafped roch. Y lever to :en-

able said U-sliaped rocking` lever to raise and' lower the valve rod when rocked.

7.. Valve reversing nieeiianisni for ka liqnid meter with measuring ve sel i'oat, .coinprising La valve rod, ti ting Weight lever, il( t'actuatedineans adapted to cause said ti? i as the itloat rises and in the opposite direc'v as it sinks, the 'ng ivefghst lever be ,5 adapted to complete its movement in either direction suddenly by the dropping oit' f ie weight as soon as the lloat actuated means have carried it past s :dead centre' posi. '-on, aA tivo armed lever adapted toY be rocletl either icliivection by the t ,ting Weight lever the mo`1 'nenttof said thing iveiglitlever is complete by the dr'vpxpinq lof the Weight, an ned member vio-ted the free i end' adapted to be Sicili-ated thereby, said anchor .haped Ainemlx-r being; lk- Amed with :tivo obliqne sur races, a hil"sliaitil roele Y led to be rocked by said Vancliorshailaed me said hl lever being termed vill-i vo obliques cdces adapted to eeoperarte with the 4o anche er to secure the valve rod i-ii position n VUer reversal, and nieansenabling said 'J-sl-ieped rocking leve-r to raise and lower the valve redy when rocked.

ln testimony whereof I'liave signed my neme to this specilica-tion.V Y

iinonsr Niionii.

in either in@I weight lever :to tilt in one direction.

que serfaces el the 

